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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 26287
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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Deere 345l running on right cylinder only. Have good spark

Customer Question

John deere 345l running on right cylinder only. Have good spark on left cylinder
JA: I'll do all I can to help. How long have you been dealing with this?
Customer: Just today
JA: Do you plan on doing the work yourself?
Customer: Yes if I can
JA: Anything else we should know to help you best?
Customer: nope
Submitted: 5 months ago.
Category: Small Engine
Expert:  Curtis B. replied 5 months ago.

Good spark on the dead cylinder? Have you checked the valves? .006 inch intake and exhaust. If valves and spark is good, then check compression on both cylinders.

Customer: replied 5 months ago.
Compression is apparent with the plug out. But no gauge to check it with.
Customer: replied 5 months ago.
good spark yes
Customer: replied 5 months ago.
Seriously thats all i get for 5 bucks
Expert:  Curtis B. replied 5 months ago.

Have the valves and the compression been checked?

Expert:  Curtis B. replied 5 months ago.

You have a business card? See if you can slip a business card between the valve stem and the valve tip.

Expert:  Curtis B. replied 5 months ago.

That's about .010 inch. It has to have some clearance, but zero will not work.

Expert:  Curtis B. replied 5 months ago.

I am off to church. Try to check the valves and I will check back.